EMC-PARTNER CDN2000-06-25, Руководство пользователя

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E-CDN2000-06-25-E-Manual 33/54
7 Maintenance and Servicing
7.1 Maintenance
No further maintenance is necessary on the CDN2000-06-25.
7.2 Verification of the CDN2000-06-25 by the user
A simple verification whether high voltage pulses occur at the tester outputs can be carried out using an
oscilloscope of a bandwidth of 20 MHz.
7.2.1 Combination Wave Tester
Caution!
Before the verifications are started remove the connection EUT power input to public power supply.
Verification as specified in the Basic Standard 1000-4-5.

Measurement of output voltage at no load

Measurement of short circuit current with short circuit output

Check that voltage and current waveform are within the tolerances.

Calculate the source impedance from the peak voltage divided by the peak current.
1. Setting „Main Menu“
V = 2000 V; Repetition 10s
2. Measuring point:
SURGE U-CRO for the voltage measurement at no load
SURGE I-CRO for current measurement at short circuit (make a short circuit on the EUT power output
phase to neutral on the front panel of the CDN2000-06-25 generator)
3. Settings at the oscilloscope
Time base 5 µs,
Vertical deflection 0.5 V / Division
Definition of the wave forms and their tolerances see chapter Insulation